Improvement in portable forges



` J. P. HOLT. Portable-Forge.

No. 219,640. Patented sept. 16, 1879.'

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UNITED STATES PATENT i OFFICE JOHN P. HOLT, OF CLEVELAND, OHIO.

IMPROVEMENT IN PORTABLE FORGES.

Specification forming part of Letters Patent No. 219,640, datedSeptember 16, 1879 application filed May 29, 1879.

To ,all whom it may concern:

Be it known that I, JOHN P. HOLT, of (lleveland, in the county ofCuyahoga and State of Ohio, have invented certain new and usefulImprovements in Portable Forges; and I do hereby declare thefollowing'to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it pertains tomake and use it, reference being had to the accompanying drawings, whichform party of this specification.

My invention relates to portable forges; and consists in' improvementswhereby the device may be readily knocked down or taken apart forshipment, and whereby the device i which project from the plate A, andare provided with recesses, into the sides of which the upper ends ofthelegs B rest, and are secured by screws or bolts.

The legs B, l prefer to make of pipe, though This form, however, ispreferable, as being lighter, yet suiciently strong.

C represent the leg-braces. Their ends are hooked into sleeves D, whichsleeves are slipped upon the legs, and secured in any desired positionby set-screws d. Of course, instead of the braces' C being simply hookedinto the orifices iu the sleeves D, as shown,

they may be fastened to the sleeves D in any other suitable manner.4

E is a bracket, which supports the mechanism for driving the fan. Thisbracket E has a sleeve, E', adapted to slip over the upper end of theleg, and the set-screw e serves to fasten it on the leg. At the Lipperend of the sleeve E' there is a recess, c', so that when the sleeve E'is in position the projection A' fromthe top plate will extend into therecess e', thus preventing the sleeve E from turning around the leg. Thebracket E supports the shaft F, upon which runs the band-wheel F', thatdrives the fan. There isalso upon the shaft F a drum, Gr, bearingaclutch, G', which engages automatically with the rim on the hub of theband-wheel F', when the drum is turned in one direction, but whichclutch slides freely over the rim when moving in the other direction.This drum is actuated alternateiy in opposite directions by means of thest-rap H, tension-arm H, and lever H2, so that by actuating the lever H2the iiddledrill motion given to the drum Gr causes the band-wheel to beturned and the fan operated.

The lever H2 is secured at h2 to the bracket I, which bracket has asleeve, I', a recess, i', and set-screw i2, whereby the sleeve is fast.-ened rigidly to the leg B and prevented from turning thereon. Thetension arm H1` is secured to the leg B by a sleeve, h', and setscrewh2, and operates against the tension of a spring, h3.

The tension-arm may be given a greater tension by increasing thestrength of the spring h3, or with the same spring by securing thesleeve h at a higher point on the leg B.

The shaft F may be made in any form; but I prefer to make it hollow,with a projecting end and an oil-hole, through which oil may be fed tothe interior and brought against the outer or journal surface throughperforations within the drum. A plug `may be inserted at the end toprevent oil from wasting, and when removed will furnish an foriticethrough which a wire or swab may he inserted to cleanse the interior.

What I claim isl.l In a portable forge, the combination, with the topplate, A, legs B, and lug A', of the bracket E, provided with a sleeve`having a recess, e', into which lits the lower end of lug A andset-screw, substantially as and for the purpose set forth.

2. In a portable forge, the combination, with the topplate, A, and legsB, of bracket E, shaft F, drum G, band-wheel F', strap H,

clutch G', tension-arm H', spring h3, sleeve h1, l

and set-'screw h2, substantially as set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOHN P. HOLT.

Witnesses J No. CROWELL, Jr., WILLARD FRAOKER.

